Abstract
We demonstrate an optothermal resonance scanning scheme to obtain stable spectra of resonant modes in whispering gallery microresonators. A wavelength stability of 0.1 pm for a temperature variation of more than 10 °C is obtained. In this scheme, a resonance mode is thermally locked to a tunable laser, and its wavelength is linearly scanned across the lasing line of a fixed wavelength laser. The scheme enables reliable and accurate readings for whispering gallery mode (WGM) sensing platforms and allows the spectroscopy of WGM resonators within wavelength bands where tunable lasers are not available.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
